Regis Philbin has done a lot of things in his 400 years in showbiz, but duetting on “I’ve Got a Crush on You” with a talk-show host who’s wearing a wig to portray wife Joy Philbin hasn’t been one of them. Until last night’s Late Night with Jimmy Fallon, that is.

Philbin was on the show to, at least in part, promote his and Joy’s album Just You. Just Me. (You’ve doubtless already acquired your own copy.) To Fallon’s credit, he didn’t go all Neil Young-y or Adam Sandler-ly on the duet, though he did tell the audience that he had another song in mind originally.

“What’s the name of the record?” Reege asked.

“It’s called ‘My Weenie’,” Fallon explained.

“Regis said, ‘No’,” Philbin advised.

And so a nation remains weenie-less — at least for the moment. The ball is now in Joy Philbin’s court. Is that new Craig Kilborn abomination still on the air?